Ixsub

seqdiag {

 client;
 clientBrowser;
 transitionServer;
 IXmapsServer;

 client -> transitionServer [label =  "submits traceroute output"];
 transitionServer -> transitionServer [label = "parses output"];
 transitionServer -> IXmapsServer [label = "submits parsed output"];
 transitionServer -> client [label = "sends traceroute id"];
 clientBrowser -->transitionServer [label = "requests map view via traceroute id"];

}